Structure for secure containment of information

ABSTRACT

A structure for secure containment of information (SSCI) that is in the form of a laminate which includes at least two layers. The laminate is constructed to contain information such as a code, serial number, informational feature, encryption key or personal identification number (PIN). The information is located between the layer of the laminate such that the code, serial number, informational feature, encryption key, or PIN is not detectable from outside the laminate. The SSCI is configured to provide access and expose the code, serial number, informational feature, encryption key, or PIN by delaminating at least one layer, thereby indicating that tampering has occurred to the laminate. The SSCI can also function as a public key or private key for a blockchain, to provide access to a physical lock or to provide account access to claim financial value.

CROSS-REFERENCES TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No. 16/869,091, filed May 7, 2020, entitled “STRUCTURE FOR SECURE CONTAINMENT OF INFORMATION,” which is a continuation of U.S. patent application Ser. No. 15/984,000, filed May 18, 2018, now issued as U.S. Pat. No. 10,661,594, and entitled “STRUCTURE FOR SECURE CONTAINMENT OF INFORMATION,” the entire contents of which are herein incorporated by reference.

TECHNICAL FIELD

The invention generally pertains to secure storage of codes used in commerce, and more specifically to improved security features for a currency laminate which is not susceptible to external detection, tampering and/or counterfeiting.

BACKGROUND ART

In the world of currency and financial instruments various symbols of value are utilized to facilitate acquiring, owning and transferring financial value. Examples of physical representation of cryptocurrency products that store value include denarium, bitnote, Suisse polymerbit, and cassascius coins, and cryptocurrency wallets. One feature that all of these have in common is the inclusion of a security feature, which is in the form of information that is usually beneath either a holographic sticker or a scratch-off material. These stickers or scratch-off materials are intended to be removed and therefore are located on an easily-accessible exterior surface of the token.

There are problems associated with these conventional security features. One of the most serious of the problems is tampering. Holographic stickers can be quickly and easily removed by using a hypodermic syringe to inject solvent under the sticker. Once the sticker is removed, a person can view the information that is beneath the sticker and then re-attach the sticker, usually with little to no indication that any tampering has occurred. Scratch-off materials are also similarly prone to tampering and/or counterfeiting. Furthermore, the hidden information below stickers or scratch off materials may be revealed by techniques such as x-ray, NMR, or electromagnetic or thermal analysis. Similarly, codes on separate pieces of paper inside of a protective envelope can be revealed by de-lamination of the envelope, and even replaced with false codes and then re-laminated without detection.

For bills, a sticker is deeply flawed for counting and sorting machines because it could come off, rendering the bill compromised. Similarly, scratch-off material cannot be handled very much without being compromised.

Another important distinction is that a sticker or scratch-off material makes the financial note essentially disposable. Makers of these products advise that a currency coin or bill could be compromised in any transaction and advise people to return the code to the blockchain as soon as they receive it, and to buy a new coin or bill if they want it in that form. This is a clear acknowledgement that the secure storage of the information in the currency instrument is not considered trustworthy. This disposability is a serious disadvantage and a cost, effectively making the bill or coin a one-exchange item.

A search of the prior art did not disclose any literature or patents that read directly on the claims of the instant invention. However, the following U.A. patents are considered related:

PAT. NO. INVENTOR ISSUED KR20160050876 Kyun Oct. 31, 2014 2016/0371679 Goto Dec. 22, 2016 2016/358420 McCullah Dec. 8, 2016

The KR2016/0050876 publication discloses a bitcoin trading method capable of reinforcing security by storing a private key and a public key of a dealer which are necessary for bitcoin trading in a smart card held by the dealer and which is not in a web. The invention relates to using a public key and a private key stored in a smart card. The bitcoin trading method comprises: storing a pair of authentication keys including a public key and a private key of a dealer issued from a bitcoin trading management server in a smart card of the dealer; inputting bitcoin trading information including a public key of a trade partner in a trading terminal; transmitting the private key of the dealer stored in the smart card to the trading terminal; encrypting the bitcoin trading information with the private key of the dealer received from the smart card by the trading terminal, and by the bitcoin trading management server. According to the present invention, the bitcoin trading method may reinforce security by storing a private key and a public key of a dealer which are necessary for bitcoin trading and many use the existing infrastructure without investing additional costs.

The 2016/0371679 publication discloses a method of conducting a virtual currency transaction through payment cards. The method comprises steps of a payer providing a payment card with an encrypted address; associating the encrypted address to at least one virtual wallet having currencies; a payee receiving a predetermined amount of currencies from the virtual wallet by scanning the encrypted address; and the payee depositing the currencies into payee's virtual wallet.

The 2016/358420 publication discloses a method wherein an in-game currency (including digital or currency) or in-game resource is backed by or designated to represent a real world currency or a real world physical object. The in-game currency or in-game resource is backed with real currency, digital currency or a physical object using a percentage of the revenues from in-game purchases, game subscriptions or in-game advertising.

DISCLOSURE OF THE INVENTION

A structure for secure containment of information (SSCI) that provides a significant improvement to the security and convenience of blockchain and other types of currency. In currency art, most currency coins and bills utilize either a holographic sticker or a scratch-off material on the surface, both of which are designed to be removable and are therefore not located within the structure of the coin or bill. For one type of physical bitcoin, a private key is printed on a piece of plastic with a scratch-off layer. The bitcoin is then placed inside an envelope made of layers of metal foil and plastic-paper polymer. The SSCI instead utilizes layers as an integral element of the instantiated information in the laminate and does not use a scratch-off layer or envelope. The SSCI also does not have a separate piece of plastic inside a laminate, unlike some other designs which are effectively just an envelope for code written on a separate piece of material.

Scratch-off material can also be tampered with and/or counterfeited. Holograms, or other sticker type items can be easily removed, thus exposing the information beneath the sticker, and then re-attached. An alternative for tampering would be to reattach a similar sticker. In both cases, the security of the product hinges upon one anti-counterfeiting feature. In contrast, the SSCI allows multiple anti-counterfeiting features to be broken in the process of delamination.

Another form of information concealment, which may be called a “window”, is used in sending pin codes and other information. The code is printed on a first sheet of paper or plastic, and then a second sheet of paper, plastic or foil is attached to cover the code, with the adhesive in a rectangle or circle all around the code, but not on the code itself. In another related version, a window is made such that the sheet may be torn open to reveal the code on the first sheet. The tamper proofing in this case is based on the tearing of the second sheet to expose the code on the first sheet. In essence, the window is an envelope that is sealed on its edges and may be opened to reveal information.

There are several substantial differences between a window and the more secure SSCI:

1) In a window, there is no adhesion over the code itself. In the SSCI, adhesion is effected across the surface of the underlying sheet(s), and adhesion in some versions instantiates the code. The code is integrated into the structure which makes it harder to reveal covertly, and more difficult to overcome the security features.

2) It is easier to delaminate an edge of a window, and it is harder to detect such tampering, than to delaminate the entire laminate as in this invention. In instances of this invention where the adhesive itself creates a readable surface after delamination, tampering is further discouraged because the code is essentially not readable until irreversible delamination has occurred.

3) The need for a window to be readily tearable introduces structural weakness into the form. In the SSCI, both outer layers may be chosen for optimal strength and resistance to tearing.

4) The two sheets that form a window are not intrinsically resistant to tampering. An attack on the adhesive connecting the two sheets is possible. In the SSCI, the only way to open the product is to delaminate the sheets, materially and visually changing the appearance of the layers.

5) In the window, anti-tampering features can only be relevantly applied to the window itself, or perhaps to the code beneath the window. In the SSCI, delamination would substantially break numerous anti-tamper and security features over a wider area. This invention is far more difficult to counterfeit or defeat than the existing window devices.

6) The window is essentially limited to one layer of material information. In the SSCI, multiple layers of information, as well as decoy layers, may be laminated together.

The instant SSCI addresses these issues by providing a structure that implements new and unique containment of information as well as a method for producing the containment of information.

The SSCI includes a laminate with at least two layers, which can be made of a variety of material, with plastic and/or metal preferred depending on the functional application. The SSCI is constructed to contain information including a code, serial number, information feature, encryption key or personal identification number (PIN number). The information is located between the layers such that the information is not visible or detectable from outside the laminate. To access and reveal the information within the laminate, the laminate is de-laminated, thereby indicting that tampering has occurred to the laminate. When the SSCI is de-laminated, irreversible damage is done to multiple metal and plastic layers, such as turning the metal layer into flakes or powder in a random or selected pattern, folds and creases to the bill, breaking of the print layers, breaking of security threads such as color-shift threads, oxidation of layers, separation of print layers onto distinct surfaces, intentional tearing of layers, changed color of adhesive, and demetalization of holograms, if they are included.

The information within the laminate is a pattern incorporated into at least one of the layers. There are multiple ways of instantiating the information into or onto the layer(s). Examples of instantiation include placing material on the layer(s), placing material on the layer(s) and removing some of the material, placing adhesive material on the layer(s), placing release material on the layer(s), or utilizing magnetic domains.

At least one of the layers can also retain a pattern of electrically charged material or contain a pattern of chemically altered material with the pattern exhibiting the information. Additionally, at least one of the layers can contain information that is displayed as at least two visible colors, which are comprised of colored materials that have similar chemical structures.

The information within the laminate may provide access to open a lock, typically by means of an electronic device. The information may also provide account access to claim financial value, or to function as a private key for a blockchain. The laminate can utilize at least one blocking layer that restricts radiation and other interrogation methods.

One example of the SSCI structure is a five-layer design with the layers comprising in order: a first plastic layer that is transparent and includes indicia, a first layer of metal, a patterned adhesive material with areas of low adhesion, a second layer of metal, and a second transparent plastic layer. The method of assembling the SSCI comprises the first metal layer is vacuum deposited on the first plastic layer, the second metal layer is vacuum deposited on the second plastic layer, patterned release material is applied to the laminating adhesive and the thus patterned laminating adhesive applied between the two metal layers, with the metal surfaces of the first and second metal layers in contact with the patterned adhesive, thereby leaving the plastic surfaces of the two plastic and metal laminated layers exposed.

In view of the above disclosure the primary object of the invention is to provide a structure for secure containment of information that includes improved security features for currency, financial devices or other information devices.

In addition to the primary object, it is also an object of the invention to provide a structure for secure containment of information that:

-   -   can be used for many types of currency,     -   can be used for non-currency applications,     -   is easy to implement,     -   can be visually attractive and informative,     -   does not interfere with the use of currency,     -   can utilize a variety of security features,     -   is cost effective from both a manufacturer's and consumer's         point of view.

These and other objects and advantages of the present invention will become apparent from the subsequent detailed description of the preferred embodiment and the appended claims taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an elevational side view of a five-layer design of a structure for secure containment of information.

FIG. 2 is an elevational side view of a six-layer design of the structure for secure containment of information.

FIG. 3 is an exploded view of the five-layer design of the structure for secure containment of information.

BEST MODE FOR CARRYING OUT THE INVENTION

The best mode for carrying out the invention is disclosed in terms that disclose a preferred embodiment with multiple structural configurations and methods for manufacture of a structure for secure containment of information (SSCI 10). In many types of currency, and in particular blockchains, security features are placed on bills or coins. Examples of security features are a holographic sticker and a scratch-off material. Other security features, such as security printing, serial numbers, color shift thread, etc. might be printed on the surface of the bill, but are not affected by tampering or legitimate removal of the hologram sticker or scratch-off material. These, and other, security features are utilized to cover or otherwise mask information located beneath a sticker or scratch-off material.

A problem exists in that these external security features are susceptible to tampering and counterfeiting. It is not difficult to use a hypodermic syringe to inject a solvent under a sticker, remove the sticker to expose the information, and then to replace the sticker. This is just one example. Some stickers can simply be peeled off and then replaced without any noticeable indication. Still other stickers may be heated, breaking the adhesive bond, and then reattached without damaging the sticker substrate. Scratch-off material is also at risk of tampering and counterfeiting. The SSCI 10 addresses these problems by providing an effective solution of embedding a private code or key within a currency bill, rather than on an exterior surface. The SSCI's 10 construction is designed for hiding codes, keys or other information instead of utilizing an add-on item to the exterior surface or packaging of an enclosed separate item.

As shown in FIGS. 1-3, the SSCI 10 is comprised of a laminate 12 having at least one plastic layer 14 and at least one metal layer 16. Preferably, there are multiple plastic and metal layers comprising the laminate 12. While plastic and metal are the two most effective materials for the layers, other material such as glass, ceramic, paper or sheets of fibrous material can also be utilized. The laminate 12 is constructed to contain information 22 including a code, serial number, informational feature, encryption key or pin number. The information 22 is located between the laminate layer such that the code, serial number, informational feature, encryption key or pin number is not visible from outside the laminate. To access and expose the information 22, the laminate 12 is delaminated, thereby indicating that tampering has occurred to the laminate 12.

The information 22 is preferably a physical pattern 24, as shown in FIGS. 2 and 3, that is instantiated into at least one of the layers 14,16. There are multiple ways of instantiating the information into the layer(s), including but not limited to: placing material 26 on the layer and then removing material 26 from the layer such that the remaining material 26 exhibits the information 22, placing material 26 on the layer such that the material 26 exhibits the information 22, placing adhesive 28 material on the layer such that the adhesive 28 material exhibits the information 22, or placing release material 30 on the layer such that the release material 30 exhibits the information 22.

At least one of the layers 14,16 can contain information 22 instantiated by magnetic domains 34, as shown in FIG. 3. Also, at least one of the layers 14,16 can retain a pattern of electrically charged material 36, and/or contain a pattern of chemically altered material 38, as also shown in FIG. 3. The information 22 can be displayed as at least two visible colors which are comprised of colored material(s) 42, as shown in FIG. 2, that have similar chemical structures. At least one of the colored materials 42 laterally surrounds the other colored material 42.

The code, serial number, informational feature, encryption key or pin number provides access to open a physical or an informational lock. The access is provided by a device such as a computer, scanning device, wireless phone, wireless device, digital watch, digital glasses or digital camera. Additionally, the code, serial number, informational feature, encryption key or pin number provides account access to claim financial value, and/or provides access to a financial account 50 such as a physical commodity, a bank account or a brokerage account. It should be noted that exposing the code, serial number, informational feature, encryption key or pin number can constitute the execution of a contract.

To increase the functionality and security capabilities of the SSCI 10, the plastic layer(s) 14 can include at least one decoy layer 52, as shown in FIG. 3, which contains patterns that do not exhibit the information 22. The code, serial number, informational feature, encryption key, or pin number can be utilized as a public key 46, as shown in FIG. 3, or a private key 48, as also shown in FIG. 3, or to value stored in a blockchain. The SSCI 10 can also include at least one blocking layer 54, as shown in FIG. 3, that restricts radiation and other interrogation methods. The blocking layer 54 can be made of a material including a metal, an ink, a dye or a pigment. When a pigment is used, the pigment may be comprised of carbon.

The SSCI 10 can consist of various structure designs and the method can include steps for producing a structure having multiple layers. A five-layer design 58, as shown in FIGS. 1 and 3, has layers comprising in order: a first plastic layer 14 that is transparent and includes indicia, a first layer of metal 16, a layer of patterned adhesive material 40, as shown in FIG. 2, with areas of low adhesion, a second layer of metal, and a second transparent plastic layer. The method of assembling the SSCI 10 comprises: the first metal layer is vacuum deposited on the first plastic layer, the second metal layer is vacuum deposited on the second plastic layer, patterned release material is applied to laminating adhesive and the thus patterned laminating adhesive is applied between the two metal layers with the metal surfaces of the first and second metal layers in contact with the patterned adhesive, thereby leaving the plastic surfaces of the two plastic and metal laminated layers exposed.

A six-layer design 60, as shown in FIG. 2, has layers comprising in order: a first plastic layer 14 that is transparent and includes indicia, a first layer of metal 16, a printed layer of plastic 14, an applied release material layer 30, a second layer of metal 16, and a second transparent plastic layer 14. The method of assembling the SSCI 10 comprises: the first metal layer is vacuum deposited on the first plastic layer, the second metal layer is vacuum deposited on the second plastic layer, areas of release material are applied to the printed plastic layer, the printed plastic layer with the release material is laminated between the two metal layers with the metal surfaces of the first and second metal layers in contact with the printed plastic layer, thereby leaving the plastic surfaces of the two plastic and metal laminated layers exposed.

In the case of a metallic version of the SSCI 10, the center section could be made as a three-dimensionally structured metallic film with the deposition performed such that only metal rather than printing would be visible.

While the invention has been described in detail and pictorially shown in the accompanying drawings it is not to be limited to such details, since many changes and modification may be made to the invention without departing from the spirit and the scope thereof. Hence, it is described to cover any and all modifications and forms which may come within the language and scope of the claims. 

What is claimed is:
 1. A structure for secure containment of information, comprising: a laminate comprising multiple layers of material, wherein: the multiple layers of material comprise a first metallic layer and a second metallic layer; the laminate comprises information disposed between at least two of the layers of material such that the information is not visible or detectable from outside the laminate; the laminate is configured to be de-laminated to irreversibly separate at least a portion of at least two of the layers of material to expose the information; and the de-lamination causes irreversible damage to layers of material on either side of the information.
 2. The structure for secure containment of information of claim 1, wherein: the first metallic layer and the second metallic layer each comprise a same type of metal.
 3. The structure for secure containment of information of claim 1, wherein: the first metallic layer and the second metallic layer each comprise a different type of metal.
 4. The structure for secure containment of information of claim 1, wherein: the multiple layers of material comprise a first blocking layer and a second blocking layer; each of the first blocking layer and the second blocking layer that restricts a radiation interrogation method; and the information is disposed between the first blocking layer and the second blocking layer.
 5. The structure for secure containment of information of claim 1, wherein: the irreversible damage caused comprises multiple anti-counterfeiting features being broken.
 6. The structure for secure containment of information of claim 1, wherein: the multiple layers of material comprise a first plastic layer and a second plastic layer; and the first metallic layer and the second metallic layer are disposed between the first plastic layer and the second plastic layer.
 7. The structure for secure containment of information of claim 6, wherein: the first metallic layer is vacuum deposited on the first plastic layer; the second metallic layer is vacuum deposited on the second plastic layer; and a patterned adhesive is disposed between the first metallic layer and the second metallic layer.
 8. A structure for secure containment of information, comprising: a laminate comprising multiple layers of material, wherein: the multiple layers of material comprise a first blocking layer and a second blocking layer; each of the first blocking layer and the second blocking layer that restricts a radiation interrogation method; the laminate comprises information disposed between the first blocking layer and the second blocking layer such that the information is not visible or detectable from outside the laminate; the laminate is configured to be de-laminated to irreversibly separate at least a portion of at least two of the layers of material to expose the information; and the de-lamination causes irreversible damage to layers of material on either side of the information.
 9. The structure for secure containment of information of claim 8, wherein: the de-lamination comprises peeling at least a portion of the at least two of the layers of material apart from one another.
 10. The structure for secure containment of information of claim 8, wherein: the multiple layers of material comprise a first metallic layer and a second metallic layer.
 11. The structure for secure containment of information of claim 8, wherein: each of the first blocking layer and the second blocking layer comprises at least one material selected from the group consisting of a metal, an ink, a dye, and a pigment.
 12. The structure for secure containment of information of claim 8, wherein: at least one of the first blocking layer and the second blocking layer comprises carbon.
 13. The structure for secure containment of information of claim 8, wherein: the information comprises at least one of a code, a serial number, an information feature, an encryption key, and a personal identification number (PIN).
 14. The structure for secure containment of information of claim 8, wherein: the information is instantiated into one of the multiple layers of material.
 15. A method of manufacturing a structure for secure containment of information, comprising: providing a plurality of layers of material, wherein: the plurality of layers of material comprise a first metallic layer and a second metallic layer; the plurality of layers of material comprise a first blocking layer and a second blocking layer; and at least one of the plurality of layers comprises information; and securing the plurality of layers of material together to form a laminate such that the information is disposed between the first blocking layer and the second blocking layer to ensure that the information is not visible or detectable from outside the laminate, wherein: the laminate is configured to be de-laminated to irreversibly separate at least a portion of at least two of the layers of material to expose the information; and the de-lamination causes irreversible damage to layers of material on either side of the information.
 16. The method of manufacturing a structure for secure containment of information of claim 15, wherein: securing the plurality of layers of material together comprises applying a layer of patterned adhesive material to one of the plurality of layers.
 17. The method of manufacturing a structure for secure containment of information of claim 16, wherein: the layer of patterned adhesive material comprises at least one area of low adhesion.
 18. The method of manufacturing a structure for secure containment of information of claim 15, further comprising: vacuum depositing the first metallic layer onto a first plastic layer; and vacuum depositing the second metallic layer onto a second plastic layer.
 19. The method of manufacturing a structure for secure containment of information of claim 15, further comprising: instantiating the information onto the at least one of the plurality of layers.
 20. The method of manufacturing a structure for secure containment of information of claim 19, wherein: instantiating the information comprises one or more of the group comprising: placing additional material on one of the plurality of layers such that the additional material exhibits the information, placing additional material on one of the plurality of layers and removing a portion of the additional material such that a remaining portion of the additional material exhibits the information, placing an adhesive material on one of the plurality of layers such that the adhesive material exhibits the information, placing release material on one of the plurality of layers such that the release material exhibits the information, and utilizing magnetic domains. 